# grid_trian.m

Triangular spherical quadrature grids, as per Appendix A.6 of (http://dx.doi.org/10.1016/j.jmr.2014.05.009).

## Syntax

    [alps,bets,gams,whts,vorn]=grid_trian(type,n)


## Arguments

     type - 'asg', 'sophe', or 'stoll'

n - point count parameter


## Outputs

     alps - alpha Euler angles of the grid (radians),
zeros because these are two-angle grids

bets - beta Euler angles of the grid (radians)

gams - gamma Euler angles of the grid (radians)

whts - Voronoi tessellation body angle weights

vorn - a cell array of matrices containing the
coordinates of the vertices of the Voro-
noi polyhedra


## Examples

Below is the figure produced by grid_trian('stoll',10).

## Notes

If no outputs are requested, a schematic is drawn.